[sdiy] Monosynth features poll

[grant at musictechnologiesgroup.com]

> 
> There might be some delay issues too. I don't know, but I suspect  
> that many uP-scanned keyboards don't respond that fast. The Prophet  
> T8 (a top end instrument) scans its keyboard every millisecond, but  
> only because it measures velocity. The 1980's wisdom seems to have  
> been that anything under 20mS isn't perceptible and therefore doesn't  
> matter. A simple gate direct from the keyboard is going to be faster  
> to respond.

FWIW the JX3P scans at 10ms.

GB
www.musictechnologiesgroup.com